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Kineska matura | Chinese Final Exam #1

Na pravcu dane su točke A, P, B redom i neka je Q točka u beskonačnosti na danom pravcu. Ako je AB=69 i BP=23, koliko iznosi (A,B;P,Q) ?
Let A, P, B be points on a line in that order, and let Q be a point at infinity on that line. If AB =69 and BP=23, what is the value of (A,B;P,Q) ?